Changing "Results to display" causes a full page refresh

[rocketeerbkw]

Currently when a user changes the number of results to display on a page (Backups, Deployments, and Tasks), the component calls window.location with the new results which causes a full page refresh.

But we're using React which means we should be able to update the data inline.

A potential fix would be to change the ResultsLimited component that instead of having an internal onChange event, it accepts an onChange function as part of its props. Then each page that that uses the component can handle it's own state.

[DaveDarsa]

fixed in #173